﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication4
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            Label5.Text = DateTime.Now.ToString();
        }

        protected void Button2_Click(object sender, EventArgs e)
        {
            this.TextBox1.Text = "";
            Label6.Text = "已清除输入的内容";
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            this.Label6.Text = "此新闻来自 " + this.DropDownList1.Text + " 谢谢您提交的新闻";
            if (this.TextBox1.Text == null||this.TextBox1.Text=="")
            {
                Label6.Text = "请输入新闻内容";
            }
        }

        
    }
}